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DEVICE EUR TRANSMITTING POWER.'

Patented June 4, 1895.

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(No Model.)

DEVICE FOR TRANSMITTING POWER. v

Patented June 4, 1895.

| rms an.. Pnoroutwo., wAsmNmaN u c UNITED STATES PATENT. OFFICE.

JAMES G. WESTBROOK, OF OGDENSBURG, NEW YORK.

D EvICI-i FOR TRANSMITTING POWER'.

sPEciFIcATIoN forming part of Letters Patent No. 540,473, dated June 4,1895.

i I Application tiled April 9, 1894:. Serial No. 506,976; (No model.)

To all whom it may concern.- j Be it known that I, JAMES G. WEs'rBRooK,

Va citizen of the United States, anda resident .of Ogdensburg, inthecounty of St. Lawrence,

State of New York, have invented a certain new and useful Improvement inDevices for Transmitting Power, of which the following is aspecification.

My invention relates to devices for transmitting power by compressedair, steam or other suitable fluids, and is especially intended for usein connection with grain shoveling apparatus, as a substitute for handlabor in connecting the drums, which operate the ropes by which theshovels are actuated, with and disconnecting them from disks on thedriving shaft. The invention is, however, also applicable to otherpurposes.

In grain shoveling apparatus, the shovels are actuated by cablesoperated by drums or Winches that 'are at a considerable distance fromthe shovels, thesaid drums being driven by friction gearing. Heretofore,the connecting with and disconnecting of the drums from the drivingdisk, has been effected by the attendants pulling ropes which operatelevers t-hat connect and disconnect thedrums, with and from the disks;but this mode of operating the levers requires the-labor of eight menfor an ordinary shoveling plant, merely to throw the drums in and out ofconnection at the proper times.y By myinvention, however, the drums areconnected and disconnected with and from the friction disks by cylindersadjacent to the drums, the pistons of the cylinders being operated bycompressed air, or

other suitable fluid, and the valves which con-A trol the movements ofthe pistonsbeing separated from the cylinders and placed at the pointwhere the shovels are working, at a distance from the cylinders. Saidvalves are therefore, under the immediate control of the attendants onthe shovels, and are connected with the cylinders by suitable pipes. Inthis manner avery great saving yin the labor required to operate thedrums is effected, and there is a corresponding reduction in the cost ofshoveling the grain.

My invention, therefore, relates especially to the combination with theshoveling plant of theV cylinders for operating the friction gearing ofthe drums, the valves at a distance from the cylinders, and theconnections be# tween the valves and the cylinders.

Referring to the drawings which accompany the specification to aid thedescription, Figure l is a perspective view of the invention applied toshoveling grain in the hold of a vessel. Fig. 2 is an end and Fig. 3afront elevation showing the arrangement of the drums andfriction-disks. Fig. 2X is a detailed view of the manner in which thedrums are supported. Figs. 4, 5, and 6 are details of one of the valvesby which the admission of compressed air to the cylinders iscontrolledFig. 5 being an end elevation of the valve and Fig. 6 asection on the line 6 6 of Fig. 4.

Referring to Figs. l to 6, the shovel A isoperated to and fro by thecables B. C, led respectively around the drums D' E', and the shovel A'is operated by the cables B' C', led respectively around the drums D E;said drums D' E', D E being respectively fixed on shafts d2 e2, and d e.i

D3 E3 are disks, respectively fixed near the ends of the shafts d2 e2,D4 E4 being similar disks on the shafts d e'.

The boxes G2 G3 of the shafts d2 e2, and G G' of the shafts d' e areeach preferably snpported, as indicated in Fig. 2X, on the ends ofvertical links i; H being short powerful links leading horizontally fromthe said boxes to the brackets J, which are (ixed to the timbers of thebuilding. A link j pivoted to the bracket J at K2, is also pivoted tothe other end of the said link t', and a link K' also pivoted at K2, atone extremity, is at the other extremity pivoted to a lever L or L', atlc. Finally, the inner end of said lever L or L', is pivoted to thepivot of the aforesaid links t and j.

W' is the counterpoise of the lever L', and W is the counterpoise of thelever L, counterpoise W being heavier than the drum E and disk E3 andtheirshaft and the counterpoise W being lighter. than the drum E anddisk E4 and their shaft.

The inner ends of the shafts d' e', cl2 e2 are loosely held in boxes D6,so as to permit of .a

deflection of the shafts, in the usual manner.

The aforesaid link H may be made integral with the box G2, or preferablybe pivoted to a lug on said box, as shown in Fig. 2X, and the link mayalso be pivoted to a lug on said box.

For each drum D', E', there will be a lever L', and for each drum D E, alever L as described, and each lever will be connected, in the mannerabove described, with links i, K.

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S8 is a partition between the upper and lower drums, on which thecylinders N N' Ns N4 are supported and secured.

F' is a friction disk on a driving shaft f2, and is adapted to drive thedisks Ds D4, of the drums D D; and F is a similar disk on the other endof said shaft f2, and adapted to drive the disks E3 E4 and their drums,E E. The shaft f2 is driven by any suitable motor, not shown, as a steamengine.

Connected with the aforesaid lever L' of the right hand drum (Fig. 1) isthe piston rod Z2 of a piston working in a cylinder N, and the left handlever L', is connected with the piston rod Z3 of a piston working in acylinder N3. Similarly the lever L of the right hand drum, is connectedwith the piston rod Z4 of a piston working in the cylinder N', and thelever L of the left hand drum, is connected with a piston rod Z5 of apiston working in a cylinder N4. Said cylinders N N' N3 N4 are eachpreferably single acting.

The cylinders N N3, are each connected by pipes o4 o5 with a port of avalve P, and the cylinders N' N4, are each connected by pipes o2 o3 witha port of a similar valve P', said valves P and P', being each connectedby a pipe, o o' respectively, with a compressed air reservoir O. Each ofsaid valves P and P' is constructed in the following manner: The valvehas fonr ports, p' 192193194. 1n the case of valve P, the port p' isconnected with the compressed air pipe o,- in the case of the valve P',with the compressed air pipe o', either directly or through the chamberQ, Q being a nozzle connecting with the compressed air pipe o, or o'.The port p4, in each valve, leads to atmosphere. Port p2, of valve Pconnects with the pipe o4, leading to the cylinder N, and port p3,connects with the pipe o5 leading cylinder N3. Of valve P' thecorresponding ports respectively connect with the pipe o2 leading to thecylinder N', and the pipe o3 leading to the cylinder N4. P2 is a bracketfor securing the valve to a frame. The plug R of said valves, isprovided with arms, r r, which wipe the surface of the valve body, rbeing a chamber between said arms, which, when the valve plug is in themiddle position, covers the exhaust port p4, the arms in this positioncovering both ports 192193.

R' is the valve handle, playing between stops s s of a plate S.

The said valves P P' will be set in` a position which is convenient tothe men in charge of the shovels A B, and control the movement of theshovels in the following manner: Suppose the disk D3 of the drum D', tobe engaged by the friction disk F', the pipe o5 being in F; and that thedisk E3 of the drum E', is g raised off the friction disk F, the pipe o4of said cylinder being in communication with the exhaust port p4, of thevalve P, so that the counterpoise W' of the right hand lever L' hasraised the disk E3 od the friction disk F. Now it is desired to reversethe motion of the shovel. The attendant throws the handle R' so as toshift the plug R, and put the pipe o5 in communication with the exhaustport p4,

i and the pipe o4 in communication with the compressed air pipe o'. Nowthe cylinder N will lift the right hand lever L', lowering the disk E3upon the friction disk F, and the compressed air escaping from thecylinder N3, by the pipe o5 and the port p4, the counterpoise W' willlift the disk Ds off the friction disk F', and thus the motion of theshovel A will be reversed. In the case of the shovel A' when thecylinder N4 is in communication with the exhaust port p4 of the valveP', the drum D being heavier than the counterpoise W, will descend,lowering the disk D4 olf lthe friction disk F'. At the same time, thecylinder N' will be in communication with the compressed air pipe o',through the valve P', and will depress the outer end of the right handlever L, raising the disk E3 against the friction disk F.

Now, having described my claim as my inventionl. The combination, inshoveling apparatus, and with the drums and cables for operating theshovels, and friction disk for operating the drums, of a valve at adistance from the drums, a reservoir for compressed fluid,pipes from thereservoir to the valves, cylinders for connecting and disconnecting thedrums with and from the friction disk and pipes from the cylinders tothe valve, and a plug in the valve for alternately connecting saidcylinders with said reservoir and with the exhaust of the valve,substantially as described.

2. In friction gearing, the combination with a driving shaft andfriction disks of drums provided with disks adapted to be actuated bysaid friction disks, cylinders each of which is provided with a pistonthat is operatively connected with one of said drums and its disk and isarranged to engage said last named disk with one of the friction diskson the driving shaft when the disk of the other drum is disengaged fromthe other of said driving shaft disks, a reservoir for compressed air, avalve, a pipe from the reservoir to the valve, and a pipe from the valveto each of said cylinders, and said valve arranged to connect one ofsaid cylinders with said reservoir at the same time that the othercylinder is connected with the exhaust port of the valve, substantiallyas described.

In testimony that I claim the foregoing as my invention Ihave signed myname, in presence of two witnesses, this 15th day of March,

JAMES G. VESTBROOK...

improvement, I

Witnesses J. l-I. (EARRING-TON, I-IOMER RODDEN.

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